小学英语第三人称单数专题省公共课一等奖全国赛课获奖课件.pptx

第1页I often/usually/sometimes普通现在时普通现在时经常性、习惯性发生动作经常性、习惯性发生动作第2页 play football watch TV cook Chinese food study English do homework第3页第4页第5页第6页I often play football.He often plays football.I often cook Chinese food.He often cooks Chinese food.第7页 I often watch TV.He often watches TV.第8页在普通现在时中，当在普通现在时中，当主语主语是是第三人称单数第三人称单数时，谓语动词时，谓语动词要用第三人称单数形式，即要用第三人称单数形式，即常在动词原形后加常在动词原形后加-s或或-es。第9页1.普通情况下，直接在动词后普通情况下，直接在动词后+s，come play like draw read comes plays likes draws reads第10页2.以以s,sh,ch,x,o 结尾动词，在词结尾动词，在词尾尾+es watch teach wash go watches teaches washes goes第11页 I often study English.He often studies English.第12页3.以以辅音字母辅音字母+y 结尾结尾动词，变动词，变y 为为i，再，再+es study fly studies flies第13页 I often do homework.He often does homework.第14页I often have an English class.He often has an English class.第15页4.不规则改变动词不规则改变动词have do has does第16页Do you often play football?Yes,I do.No,I dont.第17页Yes,he does.No,he doesnt.Does he often play football?第18页I often play football.Do you often play football?He often plays football.Does he often play football.第19页在普通现在时中，当在普通现在时中，当主语是第三人称单数主语是第三人称单数时，时，疑问形式？疑问形式？当主语为第一二人称时，怎样变成疑问句？当主语为第一二人称时，怎样变成疑问句？I often play football。Do you often play football?句子前加句子前加上上doHe plays football.Does he play football?句子前加句子前加does后后还有什么改变还有什么改变第20页She often watches TV.She often does homework.Does she often watch TV?Does she often do homework.第21页I often play football.I dont often play fooball.He often plays football.He doesnt play football.第22页在普通现在时中，当主语是第在普通现在时中，当主语是第三人称单数时，否定形式？三人称单数时，否定形式？1.He often watches TV.He doesnt watch TV.2.He often cooks Chinese food.He doesnt often cookk Chinese food.第23页对比改变对比改变I often play football.I dont often play football.Do you often play football?He often plays football.He doesnt often play football.Does he often play football?第24页第25页